The be quiet! Dark Rock 6 is positioned as a single-tower CPU air cooler, designed to offer cooling performance and low noise output, sitting between the company’s entry-level and premium Dark Rock Pro 6 offerings. Priced at $110, this model undercuts its dual-tower counterpart by $20, providing a middle-ground choice for users seeking substantial cooling without the bulk of a larger heatsink.
In terms of physical design, the Dark Rock 6 features a single stack of aluminum fins. The unit measures 102.4mm in length, 139mm in width, and 162mm in height, and is characterized by a clean, all-black top cover held in place by a magnet.
The cooling mechanism utilizes six continuous U-shaped 6mm heat pipes originating from a nickel-plated copper base. The included fan is a 135mm Silent Wings-based PWM unit that operates at speeds up to 2000 RPM. This fan incorporates fluid dynamic bearings and a 6-pole motor, delivering a maximum airflow of 79.48 CFM. The operational noise level of the fan is 31.1 dBA at 100% PWM.
The heatsink itself has a ceramic coating, and the base material is copper/nickel plating, with a CNC machined CPU contact surface. The fan’s specifications list a power consumption of 4.8 W and an input current of 0.16 A.
The cooler supports a broad compatibility range, covering Intel sockets including LGA 1151, 1155, 1200, 1700, and 1851, as well as AMD sockets AM4 and AM5.
Weighing 1012g with the fan attached, the cooler is noted for its asymmetrical design, which maintains approximately 2.7cm of clearance between the fan and the bottom of the heatsink, helping it stay clear of memory modules. It supports an option for standard or offset mounting, with the latter noted for maximum cooling performance on AMD Ryzen processors. The installation process is described as straightforward, as be quiet! includes a thermal paste and a long Philips screwdriver.
While performing adequately as a single-tower, single-fan solution, the Dark Rock 6 is described as sufficient and can be outpaced by other coolers under full load. However, the unit’s primary strength is its low noise output, which is aided by a hardware-based switch for quiet operation mode. The review concludes that the Dark Rock 6 is competitive for those seeking great compatibility without significant loss of capability. Its final APH Networks Numeric Rating is 7.5 out of 10.
Source: APH Networks